With the same incubation temperature and moisture, the inoculatedE. coliO157:H7 showed different behaviors because of organic
fertilizer amendments (Figs. 1 and 2). ANOVA indicated that there
were significant differences in the parameters ofE. coliO157:H7
survival models (p, ı and td) between fertilizer-amended and
original soils (Fig. 2). Compared with original soils, thetdvalues
increased significantly in the acidic soils (P, H and N) after organic
fertilizer application. However, organic fertilizers did not significantly increase thetdvalues in alkaline soil sample (E). Among all
organic fertilizer tested, pig manure prolonged thetdvalues to a
great extent, especially in acidic soils (P, H and N) (Figs. 1 and 2).
With the same incubation temperature and moisture, the inoculatedE. coliO157:H7 showed different behaviors because of organicfertilizer amendments (Figs. 1 and 2). ANOVA indicated that therewere significant differences in the parameters ofE. coliO157:H7survival models (p, ı and td) between fertilizer-amended andoriginal soils (Fig. 2). Compared with original soils, thetdvaluesincreased significantly in the acidic soils (P, H and N) after organicfertilizer application. However, organic fertilizers did not significantly increase thetdvalues in alkaline soil sample (E). Among allorganic fertilizer tested, pig manure prolonged thetdvalues to agreat extent, especially in acidic soils (P, H and N) (Figs. 1 and 2).
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